Visual Studio 2013 Ultimate C# winforms application

I have created and complied a C# application using Visual Studio 2013 Ultimate. When I try and run the app I get an error "is not a valid Win32 application"

The system I am trying to run it on has Windows Server 2003 Standard edition Version 5.2 SP2.
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IdaracAsked:
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käµfm³d 👽Connect With a Mentor Commented:
By the link I posted previously, it appears that 4.0 should work. However, I know that 4.5 overwrote some of 4.0's files, so you may still encounter problems. If so, you might try going down to 3.5 or 3.0.
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käµfm³d 👽Commented:
What version of .NET is your application targeting? It appears that .NET 4.5--which I think is what VS 2013 projects default to--can not be installed on Server 2003. You might try downgrading the .NET version you are targeting. If you do, make sure you have that version of .NET installed on the server.

Just out of curiosity:  Why would you be designing a WinForms app to run on a server?
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IdaracAuthor Commented:
OK thanx

Yes I am targeting 4.5. What version can I use ? 4.0?

I have created a small demo for a client and they have provided a spot for me to install it so that their group can connect and run it and see what it looks like.
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IdaracAuthor Commented:
I went down to 3.5 and that solved it.
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